/* Modern flat design — UI components */

/* Button system */
button,
.app-btn,
.btn {
  appearance: none;
  border: 1px solid var(--space-border-default, rgba(0,0,0,0.08));
  border-radius: var(--space-radius-md, 8px);
  padding: 6px 14px;
  background: var(--space-bg-card, #fff);
  color: var(--space-text-primary, #111827);
  font: 500 13px / 1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  cursor: default;
  transition:
    background 0.15s ease,
    transform 0.1s ease,
    box-shadow 0.15s ease,
    border-color 0.15s ease;
  user-select: none;
  letter-spacing: -0.01em;
  box-shadow: var(--space-shadow-xs, 0 1px 2px rgba(0,0,0,0.04));
}

button:hover,
.app-btn:hover,
.btn:hover {
  background: var(--space-bg-hover, rgba(0,0,0,0.04));
  border-color: var(--space-border-strong, rgba(0,0,0,0.14));
  transform: translateY(-1px);
  box-shadow: var(--space-shadow-sm, 0 2px 8px rgba(0,0,0,0.06));
}

button:active,
.app-btn:active,
.btn:active {
  transform: translateY(0) scale(0.98);
  background: var(--space-bg-active, rgba(0,0,0,0.08));
  transition-duration: 0.05s;
}

button.primary,
.app-btn.primary,
.btn.primary {
  background: var(--space-accent, #0066ff);
  color: #fff;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,102,255,0.2), 0 0 0 1px rgba(0,102,255,0.1);
}

button.primary:hover,
.app-btn.primary:hover,
.btn.primary:hover {
  background: var(--space-accent-hover, #0052cc);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(0,102,255,0.25), 0 0 0 1px rgba(0,102,255,0.15);
}

button.danger,
.app-btn.danger,
.btn.danger {
  background: var(--space-error-soft, rgba(220,38,38,0.1));
  color: var(--space-error, #dc2626);
  border-color: rgba(220, 38, 38, 0.15);
}

button.danger:hover,
.app-btn.danger:hover,
.btn.danger:hover {
  background: var(--space-error, #dc2626);
  color: #fff;
  border-color: transparent;
}

button[disabled],
.btn[disabled] {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
  filter: grayscale(20%);
}

button.icon-btn,
.app-btn.icon-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--space-radius-md, 8px);
  font-size: 15px;
}

button.icon-btn.sm {
  width: 26px;
  height: 26px;
  font-size: 13px;
  border-radius: var(--space-radius-sm, 6px);
}

button.icon-btn.lg {
  width: 40px;
  height: 40px;
  font-size: 18px;
  border-radius: var(--space-radius-lg, 12px);
}

/* Form inputs */
input[type="text"],
input[type="search"],
input[type="url"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--space-border-default, rgba(0,0,0,0.1));
  border-radius: var(--space-radius-md, 8px);
  background: var(--space-bg-input, #fff);
  color: var(--space-text-primary, #111827);
  font: 400 13px / 1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  outline: none;
  letter-spacing: -0.01em;
}

[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
  background: var(--space-bg-input, #1c1c1e);
  border-color: var(--space-border-default, rgba(255,255,255,0.1));
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--space-accent, #0066ff);
  box-shadow: 0 0 0 3px var(--space-accent-soft, rgba(0,102,255,0.1));
}

input::placeholder,
textarea::placeholder {
  color: var(--space-text-tertiary, #9ca3af);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
  cursor: default;
}

textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}

/* Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.12);
  border-radius: 4px;
  min-height: 40px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .custom-scrollbar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Focus-visible global */
button:focus-visible,
.app-btn:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--space-accent, #0066ff);
  outline-offset: 2px;
}

/* Tooltip */
.tooltip {
  position: fixed;
  z-index: 25000;
  padding: 5px 10px;
  background: var(--space-bg-card, #1a1a1a);
  color: #fff;
  border-radius: var(--space-radius-full, 8px);
  font-size: 11px;
  font-weight: 500;
  box-shadow: var(--space-shadow-md, 0 8px 24px rgba(0,0,0,0.12));
  border: 1px solid var(--space-border-subtle, rgba(255,255,255,0.1));
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.tooltip.visible {
  opacity: 1;
}

/* Badge / Chip */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--space-radius-full, 9999px);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.badge.primary {
  background: var(--space-accent-soft, rgba(0,102,255,0.1));
  color: var(--space-accent, #0066ff);
}

.badge.success {
  background: var(--space-success-soft, rgba(22,163,74,0.1));
  color: var(--space-success, #16a34a);
}

.badge.warning {
  background: var(--space-warning-soft, rgba(245,158,11,0.1));
  color: var(--space-warning, #f59e0b);
}

.badge.error {
  background: var(--space-error-soft, rgba(220,38,38,0.1));
  color: var(--space-error, #dc2626);
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--space-border-default, rgba(0,0,0,0.1));
  border-top-color: var(--space-accent, #0066ff);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.animate-fade-in {
  animation: fadeIn var(--space-duration-normal, 200ms) var(--space-ease-default);
}

.animate-slide-in {
  animation: slideInLeft var(--space-duration-normal, 200ms) var(--space-ease-default);
}

/* Quota bar */
.quota-bar { padding: 2px 0; }
.quota-bar-track {
  height: 6px;
  background: var(--space-bg-hover, rgba(0,0,0,0.06));
  border-radius: 999px;
  overflow: hidden;
}
.quota-bar-fill {
  height: 100%;
  background: var(--space-accent, #0066ff);
  border-radius: 999px;
  transition: width 0.4s var(--space-ease-default);
}
.quota-bar.warn .quota-bar-fill { background: var(--space-warning, #f59e0b); }
.quota-bar.critical .quota-bar-fill { background: var(--space-error, #dc2626); }
.quota-bar-label {
  font-size: var(--space-font-xs, 11px);
  color: var(--space-text-secondary, #6b7280);
  margin: 4px 0 0;
}
.quota-bar-alert {
  font-size: var(--space-font-xs, 11px);
  color: var(--space-warning, #f59e0b);
  font-weight: 600;
  margin: 4px 0 0;
}
.quota-bar-hint {
  font-size: var(--space-font-xs, 11px);
  color: var(--space-text-tertiary, #9ca3af);
  margin: 4px 0 0;
}

/* Quota card */
.quota-card {
  background: var(--space-bg-card, #fff);
  border: 1px solid var(--space-border-subtle, rgba(0,0,0,0.04));
  border-radius: var(--space-radius-lg, 12px);
  padding: var(--space-gap-lg, 12px);
  box-shadow: var(--space-shadow-xs, 0 1px 2px rgba(0,0,0,0.04));
}
.quota-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-gap-md, 8px);
  margin-bottom: var(--space-gap-md, 8px);
}
.quota-card-item {
  text-align: center;
  padding: var(--space-gap-sm, 4px);
}
.quota-card-value {
  display: block;
  font-size: var(--space-font-lg, 16px);
  font-weight: 700;
  color: var(--space-text-primary, #111827);
}
.quota-card-label {
  font-size: var(--space-font-xs, 11px);
  color: var(--space-text-secondary, #6b7280);
  margin-top: 2px;
}